Apptive has created a software platform that allows online merchants to create and manage native mobile apps easily.

The financial terms of the deal were not disclosed.

Unbound Commerce works with more than 600 merchants, including major brands such as Finish Line, Sears and Rockport. Apptive’s mobile platform complements its mobile platform. Together, the companies will “provide out-of-the-box integrations for leading eCommerce enablers including Bigcommerce, Shopify, Demandware, Magento, Yahoo, and Volusion,” according to a news release.

“Through our new app-build capabilities, more merchants can take advantage of delivering deeper mobile commerce engagement,” Srinivasarao Nandiwada, co-founder and CEO of Unbound Commerce, said in a news release. “Mobile sites are great for expanding reach and acquiring new customers. Mobile apps, by contrast, deliver richer, more satisfying interactions to the retailer’s best customers.”

Mobile apps are growing in popularity with both merchants and customers.

“This is one of those situations where the combined company is greater than the sum of its parts. The Apptive and Unbound platforms together will create a powerful and unique solution in the eCommerce industry,” said Chris Belew, CEO of Apptive. “The combination will enable us to build on our market leadership and to enable even more brands and retailers to succeed in the age of smartphones and tablets.”

Belew and Jason Jaynes founded Apptive in 2011. They raised funds from Central Texas Angel Network and Barshop Ventures. The company has raised $1.3 million since its inception, according to its CrunchBase profile.